What a grease ball

At first I thought you were talking about Mr. Shirley calling Clark Griswold "Greaseball" in National Lampoon's Christmas vacation lol, then when I checked it out I was like hmmm chunky **** stuck to engines.

Yep the 74 moredoor I bought as a parts car for my 67 cuda looked exactly like that. Chipped about 100 lbs of dried crust off the k frame and engine when I pulled it all from the car. I determined it was valve covers that were leaking all those years and coating everything. I used cheapo oven cleaner and a wire brush to loosen up and remove all the chunks, then power washed it away.

Maybe it was that mid 70s quality coupled with the malaise era **** it attitude from back then that caused it all. It was a good rust preventative though. Glad to see your doing a V8 A body.